I am having trouble connecting to mysql database. I'm i missing something? This is my database connection file:

Code:
require "mysql2"

# error trap
begin
  dbh = Mysql2::new('127.0.0.1','root','','Accounts')
rescue Exception => e
  puts "Unable to connect to database. Error: \"#{e}\""
  exit 1
end
Error thrown:

Code:
Unable to connect to database. Error: "undefined method `new' for Mysql2:Module"
What's the best way to connect to mysql database in ruby... not rails... im working on com-line app?